fixes used with cmake issues #study #setup

CmakeIssues

#my experience working with cmake errors

If a package wasn't found .. yet its installed
  -open synaptic
  -search for the package
  -right-click and choose properties
  -in installed directory or files section figure out where the libraries are
  -u'll find some /*/*/*.so.## files, u'll need to copy them to their respective cmake options
  -notes:
    - some options may available only in the advanced window of ccmake .
    - copy only the /*/*/*.so part and skip the number (this is how it worked with me, not sure whether copying the number is a good/needed thing or not)
  -configure
  -generate
  -make and make install
  -this setup worked with installing oiio as it couldn't find the openexr and the IlmBase libraries